primemover/backup2mdisc
primemover/backup2mdisc
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# backup2mdisc
**Now you can enjoy **self-contained** backup on each disc without chain-dependency across your entire multi TB backup set!**:
- **Independently decryptable** (and restorable) archives on each M-Disc.
- Automatic ISO creation and optional disc burning in the same script.
- **Fast compression via lz4**.
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## Purpose:
1. Scans all files in a source directory.
2. Groups them into "chunks" so that each chunk is <= a specified size (default 100GB).
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4. **Cross-Platform**
- On FreeBSD or macOS, you might need to tweak the commands for hashing (`sha256sum` vs. `shasum -a 256`) or ISO creation (`mkisofs` vs. `genisoimage`).
- For burning, Linux uses `growisofs`, macOS uses `hdiutil`, and FreeBSD may require `cdrecord` or another tool.
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**Now you can enjoy the best of both worlds**:
- **Independently decryptable** (and restorable) archives on each M-Disc.
- Automatic ISO creation and optional disc burning in the same script.
- Fast compression via lz4.
This gives you a **self-contained** backup on each disc without chain-dependency across your entire 2TB backup set!
- For burning, Linux uses `growisofs`, macOS uses `hdiutil`, and FreeBSD may require `cdrecord` or another tool.